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Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
 GPT-5OpenAI |  Claude 4.6 SonnetAnthropic | Claude 4.5 Haiku Anthropic | o3 OpenAI | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | Anthropic | OpenAI |
| Family | GPT | Claude | Claude | o-series |
| Release date | 2025-08-07 | — | 2025-10-01 | 2025-04-16 |
| Context window | 400,000 tokens | 200,000 tokens | 200,000 tokens | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision, audio | text, vision | text, vision | text, vision |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — | Fast, cost-effective Claude model. | Reasoning-focused model in the o-series. |
| Links |
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Gemini 2.5 FlashmaxClaude 4.6 Sonnet✓GPT-5.5max
DeepSeek-V4-Flashmax
Qwen3.6-27BmaxGemini 3 PromaxDeepSeek-V4-PromaxClaude 4.7 OpusmaxClaude 4.5 Haiku✓DeepSeek-V3.1maxGPT-5✓
Grok 4maxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.